Figure 2

Wolbachia are absent from testis follicles in both Gryllus firmus (a) and G. pennsylvanicus (b). Spermatid nuclei (red) are seen within developing spermatocysts. All Alexa Fluor 488 staining (green) represents either background staining, or cross-reactivity with spermatid tails. Scale bar=500 μm.